LNK305PN IC – Power Integrations – AC-DC Off Line Switcher IC
Original price was: ₹82.00.₹62.34Current price is: ₹62.34. + GST
Specification:-
| Symbol | Parameter | Min | Type | Max | Units |
| VBP | BYPASS Pin Voltage | 5.55 | 5.8 | 6.10 | V |
| VBPH | BYPASS Pin Voltage Hysteresis | 0.8 | 0.95 | 1.2 | V |
| tON(MIN) | Minimum On Time | 280 | 360 | 475 | ns |
| tLEB | Leading Edge Blanking Time | 170 | 215 | ns | |
| TSD | Thermal Shutdown Temperature | 135 | 142 | 150 | ?C |
| TSHD | Thermal Shutdown Hysteresis | 75 | ?C |
20 in stock
The LNK305PN is specifically designed to replace all linear and capacitor-fed (cap dropper) non-isolated power supplies in the under 360 mA output current range at equal system cost while offering much higher performance and energy efficiency. LinkSwitch-TN devices integrate a 700 V power MOSFET, oscillator, simple On/Off control scheme, a high-voltage switched current source, frequency jittering, cycle-by-cycle current limit Figure 1. Typical Buck Converter Application (See Application Examples Section ? ?for Other Circuit Configurations).and thermal shutdown circuitry onto a monolithic IC. The start-up and operating power are derived directly from the voltage on the DRAIN pin, eliminating the need for a bias supply and associated circuitry in buck or fly back converters. The fully integrated auto-restart circuit in the LNK305 safely limits output power during fault conditions such as short-circuit or open loop, reducing component count and system-level load protection cost. ?A local supply provided by the IC allows use of a non-safety graded optocoupler acting as a level shifter to further enhance line and load regulation performance in buck and buck-boost converters.
Features:-
? Lowest cost and component count buck converter solution
? Fully integrated auto-restart for short-circuit and open loop fault protection ? saves external component costs
? 66 kHz operation with accurate current limit ? allows low cost off-the-shelf 1 mH inductor for up to 120 mA output current
? Tight tolerances and negligible temperature variation
? High breakdown voltage of 700 V provides excellent input surge withstand
? Frequency jittering dramatically reduces EMI (~10 dB)
? ?Minimizes EMI filter cost
? High thermal shutdown temperature (+135 ?C minimum)
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